1 files changed, 186 insertions, 0 deletions
diff --git a/v_windows/v/cmd/tools/vcreate.v b/v_windows/v/cmd/tools/vcreate.v
new file mode 100644
index 0000000..e147979
--- /dev/null
+++ b/v_windows/v/cmd/tools/vcreate.v
@@ -0,0 +1,186 @@
+// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
+// Use of this source code is governed by an MIT license that can be found in the LICENSE file.
+module main
+
+// This module follows a similar convention to Rust: `init` makes the
+// structure of the program in the _current_ directory, while `new`
+// makes the program structure in a _sub_ directory. Besides that, the
+// functionality is essentially the same.
+import os
+
+struct Create {
+mut:
+	name        string
+	description string
+	version     string
+	license     string
+}
+
+fn cerror(e string) {
+	eprintln('\nerror: $e')
+}
+
+fn check_name(name string) string {
+	if name.trim_space().len == 0 {
+		cerror('project name cannot be empty')
+		exit(1)
+	}
+	if name.is_title() {
+		mut cname := name.to_lower()
+		if cname.contains(' ') {
+			cname = cname.replace(' ', '_')
+		}
+		eprintln('warning: the project name cannot be capitalized, the name will be changed to `$cname`')
+		return cname
+	}
+	if name.contains(' ') {
+		cname := name.replace(' ', '_')
+		eprintln('warning: the project name cannot contain spaces, the name will be changed to `$cname`')
+		return cname
+	}
+	return name
+}
+
+fn vmod_content(c Create) string {
+	return [
+		'Module {',
+		"	name: '$c.name'",
+		"	description: '$c.description'",
+		"	version: '$c.version'",
+		"	license: '$c.license'",
+		'	dependencies: []',
+		'}',
+		'',
+	].join('\n')
+}
+
+fn main_content() string {
+	return [
+		'module main\n',
+		'fn main() {',
+		"	println('Hello World!')",
+		'}',
+		'',
+	].join('\n')
+}
+
+fn gen_gitignore(name string) string {
+	return [
+		'# Binaries for programs and plugins',
+		'main',
+		'$name',
+		'*.exe',
+		'*.exe~',
+		'*.so',
+		'*.dylib',
+		'*.dll',
+		'',
+	].join('\n')
+}
+
+fn (c &Create) write_vmod(new bool) {
+	vmod_path := if new { '$c.name/v.mod' } else { 'v.mod' }
+	mut vmod := os.create(vmod_path) or {
+		cerror(err.msg)
+		exit(1)
+	}
+	vmod.write_string(vmod_content(c)) or { panic(err) }
+	vmod.close()
+}
+
+fn (c &Create) write_main(new bool) {
+	if !new && (os.exists('${c.name}.v') || os.exists('src/${c.name}.v')) {
+		return
+	}
+	main_path := if new { '$c.name/${c.name}.v' } else { '${c.name}.v' }
+	mut mainfile := os.create(main_path) or {
+		cerror(err.msg)
+		exit(2)
+	}
+	mainfile.write_string(main_content()) or { panic(err) }
+	mainfile.close()
+}
+
+fn (c &Create) create_git_repo(dir string) {
+	// Create Git Repo and .gitignore file
+	if !os.is_dir('$dir/.git') {
+		res := os.execute('git init $dir')
+		if res.exit_code != 0 {
+			cerror('Unable to create git repo')
+			exit(4)
+		}
+	}
+	if !os.exists('$dir/.gitignore') {
+		mut fl := os.create('$dir/.gitignore') or {
+			// We don't really need a .gitignore, it's just a nice-to-have
+			return
+		}
+		fl.write_string(gen_gitignore(c.name)) or { panic(err) }
+		fl.close()
+	}
+}
+
+fn create(args []string) {
+	mut c := Create{}
+	c.name = check_name(if args.len > 0 { args[0] } else { os.input('Input your project name: ') })
+	if c.name == '' {
+		cerror('project name cannot be empty')
+		exit(1)
+	}
+	if c.name.contains('-') {
+		cerror('"$c.name" should not contain hyphens')
+		exit(1)
+	}
+	if os.is_dir(c.name) {
+		cerror('$c.name folder already exists')
+		exit(3)
+	}
+	c.description = if args.len > 1 { args[1] } else { os.input('Input your project description: ') }
+	default_version := '0.0.0'
+	c.version = os.input('Input your project version: ($default_version) ')
+	if c.version == '' {
+		c.version = default_version
+	}
+	default_license := 'MIT'
+	c.license = os.input('Input your project license: ($default_license) ')
+	if c.license == '' {
+		c.license = default_license
+	}
+	println('Initialising ...')
+	os.mkdir(c.name) or { panic(err) }
+	c.write_vmod(true)
+	c.write_main(true)
+	c.create_git_repo(c.name)
+}
+
+fn init_project() {
+	if os.exists('v.mod') {
+		cerror('`v init` cannot be run on existing v modules')
+		exit(3)
+	}
+	mut c := Create{}
+	c.name = check_name(os.file_name(os.getwd()))
+	c.description = ''
+	c.write_vmod(false)
+	c.write_main(false)
+	c.create_git_repo('.')
+
+	println('Change the description of your project in `v.mod`')
+}
+
+fn main() {
+	cmd := os.args[1]
+	match cmd {
+		'new' {
+			create(os.args[2..])
+		}
+		'init' {
+			init_project()
+		}
+		else {
+			cerror('unknown command: $cmd')
+			exit(1)
+		}
+	}
+	println('Complete!')
+}